1399494607 has 16 divisors (see below), whose sum is σ = 1655857152. Its totient is φ = 1157941440.

The previous prime is 1399494601. The next prime is 1399494617. The reversal of 1399494607 is 7064949931.

It is a cyclic number.

It is not a de Polignac number, because 1399494607 - 2³ = 1399494599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399494601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5119 + ... + 53152.

It is an arithmetic number, because the mean of its divisors is an integer number (103491072).

Almost surely, 2^1399494607 is an apocalyptic number.

1399494607 is a deficient number, since it is larger than the sum of its proper divisors (256362545).

1399494607 is an equidigital number, since it uses as much as digits as its factorization.

1399494607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58398.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The square root of 1399494607 is about 37409.8196600839. The cubic root of 1399494607 is about 1118.5543121750.

The spelling of 1399494607 in words is "one billion, three hundred ninety-nine million, four hundred ninety-four thousand, six hundred seven".